understand vs figure

understand is not a noun while figure is a noun.

Word	Noun	Adjective	Verb	Adverb
understand	No	No	Yes	No
figure	Yes	No	Yes	No

understand (noun)	figure (noun)
	a predetermined set of movements in dancing or skating
	a model of a bodily form (especially of a person)
	a decorative or artistic work
	the impression produced by a person
	the property possessed by a sum or total or indefinite quantity of units or individuals
	alternative names for the body of a human being
	a unitary percept having structure and coherence that is the object of attention and that stands out against a ground
	a diagram or picture illustrating textual material
	language used in a figurative or nonliteral sense
	a well-known or notable person
	an amount of money expressed numerically
	one of the elements that collectively form a system of numeration
	a combination of points and lines and planes that form a visible palpable shape

understand (verb)	figure (verb)
know and comprehend the nature or meaning of	make a mathematical calculation or computation
perceive (an idea or situation) mentally	judge to be probable
believe to be the case	understand
make sense of a language	imagine; conceive of; see in one's mind
be understanding of	be or play a part of or in